.banner {
  width: 100%;
}
.banner img {
  width: 100%;
}
.product-intro {
  width: 100%;
  margin-top: 70px;
}
.product-intro .intro-top {
  margin-bottom: 50px;
}
.product-intro .intro-top h4 {
  font-size: 32px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin-bottom: 18px;
}
.product-intro .intro-top div {
  text-align: center;
  font-size: 24px;
}
.recommond {
  padding: 0 8px;
  margin-top: 30px;
  text-align: center;
}
.recommond .rec-top {
  width: 100%;
  margin-bottom: 50px;
}
.recommond .rec-top h4 {
  font-size: 32px;
  margin-bottom: 20px;
}
.recommond .rec-top div {
  font-size: 24px;
}
.recommond .rec-main {
  margin-bottom: 170px;
}
@media screen and (max-width: 768px) {
  .banner {
    width: 100%;
  }
  .banner img {
    width: 100%;
  }
  .product-intro {
    margin-top: 5%;
  }
  .product-intro .intro-top {
    margin-bottom: 5%;
  }
  .product-intro .intro-top h4 {
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 10px;
  }
  .product-intro .intro-top div {
    font-size: 12px;
    margin-bottom: 16px;
  }
  .product-intro .intro-main {
    padding: 0 8px;
    width: 100%;
  }
  .product-intro .intro-main img {
    width: 100%;
  }
  .recommond {
    width: 100%;
    padding: 0 8px;
    margin-top: 5%;
    margin-bottom: -40%;
  }
  .recommond .rec-top {
    margin-bottom: 5%;
  }
  .recommond .rec-top h4 {
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 10px;
  }
  .recommond .rec-top div {
    font-size: 12px;
    margin-bottom: 16px;
  }
  .recommond .rec-main {
    width: 100%;
  }
  .recommond .rec-main img {
    width: 100%;
  }
}
